Embibe Experts Solutions for Chapter: Mole Concept, Exercise 1: BITSAT 2017

In a compound $\mathrm{C}, \mathrm{H}$ and $\mathrm{N}$ are present in $9:1:3.5$ by weight. If molecular weight of compound is $108$, the molecular formula of compound is

The empirical formula and molecular mass of a compound are ${\mathrm{CH}}_2\mathrm{O}$ and $180 \mathrm{g}$ respectively. The molecular formula of the compound will be

On electrolysis of water, a total of $1 \mathrm{mole}$ of gases is evolved. The amount of water decomposed is

How many moles of ${\mathrm{Fe}}^{2+}$ ions are formed when excess of iron react with $500 \mathrm{mL} \mathrm{O}.4 \mathrm{N} \mathrm{HCl}$, under inert atmosphere?

(assume no change in volume)

$0.765 \mathrm{g}$ of an acid gives $0.535 \mathrm{g}$ of ${\mathrm{CO}}_2$ and $0.138 \mathrm{g}$ of ${\mathrm{H}}_2\mathrm{O}$. Then, the ratio of percentage of carbon and hydrogen is 

Which of the following has the largest number of moles?